BR9713284A - Contaminant detector - Google Patents

Contaminant detector

Info

Publication number
BR9713284A
BR9713284A BR9713284-5A BR9713284A BR9713284A BR 9713284 A BR9713284 A BR 9713284A BR 9713284 A BR9713284 A BR 9713284A BR 9713284 A BR9713284 A BR 9713284A
Authority
BR
Brazil
Prior art keywords
light
liquid sample
contaminant
measured
liquid
Prior art date
Application number
BR9713284-5A
Other languages
Portuguese (pt)
Inventor
Dennis Briggs
Original Assignee
Therakos Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Therakos Inc filed Critical Therakos Inc
Publication of BR9713284A publication Critical patent/BR9713284A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light

Abstract

A contaminant detector including a light source for emitting light of a wavelength with peak emission corresponding to that of "blue" light or to that of light of even lower wavelength. Light is emitted through an arrangement containing a liquid sample having a given contaminant, and a sensing arrangement on the other side of the liquid sample detects the amount of light passing through the liquid sample. The measured light is converted into a value indicative of the relative presence of the given contaminant in the liquid sample. It is contemplated that other types of light can be used, particularly if the color of the light is matched, or even approximately matched, with that portion of the liquid sample that is not to be measured (i.e. the "background" or "non-contaminant" portion of the liquid). <IMAGE>
BR9713284-5A 1996-11-22 1997-11-21 Contaminant detector BR9713284A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US3164996P 1996-11-22 1996-11-22
PCT/US1997/021266 WO1998022798A2 (en) 1996-11-22 1997-11-21 Contaminant detector

Publications (1)

Publication Number Publication Date
BR9713284A true BR9713284A (en) 1999-10-26

Family

ID=21860655

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9713284-5A BR9713284A (en) 1996-11-22 1997-11-21 Contaminant detector

Country Status (10)

Country Link
US (1) US6069687A (en)
EP (2) EP1310784B1 (en)
JP (1) JP4346686B2 (en)
AT (2) ATE317114T1 (en)
AU (1) AU5264798A (en)
BR (1) BR9713284A (en)
CA (1) CA2272365C (en)
DE (2) DE69735175T2 (en)
IL (1) IL129959A (en)
WO (1) WO1998022798A2 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003045979A2 (en) * 2001-11-29 2003-06-05 Therakos, Inc. Methods for pretreating a subject with extracorporeal photopheresis and/or apoptotic cells
US7671974B2 (en) * 2003-10-29 2010-03-02 Chf Solutions Inc. Cuvette apparatus and system for measuring optical properties of a liquid such as blood
AU2007327541B2 (en) * 2006-09-07 2012-08-02 Siemens Schweiz Ag Improvement(s) related to particle monitors and method(s) therefor
US9370324B2 (en) 2008-11-05 2016-06-21 Fresenius Medical Care Holdings, Inc. Hemodialysis patient data acquisition, management and analysis system
DE102010038428A1 (en) 2010-07-26 2012-01-26 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Optical measuring system
US8517968B2 (en) 2011-02-25 2013-08-27 Fresenius Medical Care Holdings, Inc. Shrouded sensor clip assembly and blood chamber for an optical blood monitoring system
US9194792B2 (en) 2010-09-07 2015-11-24 Fresenius Medical Care Holdings, Inc. Blood chamber for an optical blood monitoring system
US8743354B2 (en) 2010-09-07 2014-06-03 Fresenius Medical Care Holdings, Inc. Shrouded sensor clip assembly and blood chamber for an optical blood monitoring system
US8328748B2 (en) * 2010-09-13 2012-12-11 Fresenius Medical Care Holdings, Inc. Off-axis blood chamber
US9173988B2 (en) 2010-11-17 2015-11-03 Fresenius Medical Care Holdings, Inc. Sensor clip assembly for an optical monitoring system
JP6059150B2 (en) 2010-11-17 2017-01-11 フレセニウス メディカル ケア ホールディングス インコーポレーテッド Sensor clip assembly for optical monitoring systems
USD725261S1 (en) 2012-02-24 2015-03-24 Fresenius Medical Care Holdings, Inc. Blood flow chamber
USD799031S1 (en) 2015-09-09 2017-10-03 Fresenius Medical Care Holdings, Inc. Blood flow chamber with directional arrow

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4324556A (en) * 1980-03-25 1982-04-13 The United States Of America As Represented By The Secretary Of The Navy Portable COHB analyzer
US4407295A (en) * 1980-10-16 1983-10-04 Dna Medical, Inc. Miniature physiological monitor with interchangeable sensors
JPS6350743A (en) * 1986-08-20 1988-03-03 Hitachi Ltd Analysis of hemolyzed blood specimen
US4810090A (en) * 1987-08-24 1989-03-07 Cobe Laboratories, Inc. Method and apparatus for monitoring blood components
US4775794A (en) * 1987-11-02 1988-10-04 Zenon Environmental Inc. Process and apparatus for measurement of light-absorbable components dissolved in liquids
IT220562Z2 (it) * 1990-07-17 1993-10-04 Hospal Dasco Spa Rilevatore ottico per un apparecchio di misura e monitoraggio di un liquido
US5351686A (en) * 1990-10-06 1994-10-04 In-Line Diagnostics Corporation Disposable extracorporeal conduit for blood constituent monitoring
US5372136A (en) * 1990-10-06 1994-12-13 Noninvasive Medical Technology Corporation System and method for noninvasive hematocrit monitoring
US5331958A (en) * 1992-03-31 1994-07-26 University Of Manitoba Spectrophotometric blood analysis
CA2164725A1 (en) * 1993-06-08 1994-12-22 Alexander Saunders Two-phase optical assay method and apparatus
DK88893D0 (en) * 1993-07-30 1993-07-30 Radiometer As A METHOD AND APPARATUS FOR DETERMINING THE CONTENT OF A CONSTITUENT OF BLOOD OF AN INDIVIDUAL
JP3497012B2 (en) * 1994-11-30 2004-02-16 謙 石原 Non-invasive blood analyzer
US5561065A (en) * 1994-11-14 1996-10-01 University Of Wyoming Research Corporation Method for testing earth samples for contamination by organic contaminants

Also Published As

Publication number Publication date
AU5264798A (en) 1998-06-10
EP0939892B1 (en) 2004-02-04
ATE259058T1 (en) 2004-02-15
WO1998022798A2 (en) 1998-05-28
EP1310784A2 (en) 2003-05-14
JP4346686B2 (en) 2009-10-21
CA2272365A1 (en) 1998-05-28
DE69727493T2 (en) 2005-01-05
CA2272365C (en) 2007-06-05
IL129959A (en) 2005-12-18
EP1310784A3 (en) 2003-11-19
WO1998022798A3 (en) 1998-10-15
DE69727493D1 (en) 2004-03-11
US6069687A (en) 2000-05-30
EP1310784B1 (en) 2006-02-01
EP0939892A2 (en) 1999-09-08
DE69735175D1 (en) 2006-04-13
IL129959A0 (en) 2000-02-29
DE69735175T2 (en) 2006-09-21
ATE317114T1 (en) 2006-02-15
JP2001505996A (en) 2001-05-08

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Legal Events

Date Code Title Description
PC Transfer

Free format text: JOHNSON & JOHNSON (US)

HHT Entry of change of name and/or headquarter and transfer of application, patent and certificate of addition of invention: republication

Free format text: TRANSFERIDO DE THERAKOS, INC - REFERENCIA RPI 1533 DE 23/05/2000 - COD. 25.1 - ITEM 71

B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B09W Correction of the decision to grant [chapter 9.1.4 patent gazette]

Free format text: REFERENTE A RPI 1920 DE 23/10/2007 CODIGO DE DESPACHO: 9.1

B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 11/03/2008, OBSERVADAS AS CONDICOES LEGAIS.

B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]